Illinois - Constructed - 1870–1879
| Amboy Illinois Central Depot |
| Bohemian National Cemetery |
| Charter Oak Schoolhouse |
| Chicago, Milwaukee and St. Paul Railway Passenger Depot |
| Clover Lawn |
| Delaware Building |
| Dorhmann-Buckman House |
| Ellwood Mansion |
| Emmel Building |
| Evert House |
| First Church of Lombard |
| Grosse Point Light Station |
| Grubbs, Samuel Moody, House |
| Hegeler-Carus Mansion |
| Henson House |
| Holy Name Cathedral |
| Humboldt Park |
| James, Jean Butz, Museum of the Highland Park Historical Society |
| Lincoln Tomb |
| Lone Tree School |
| Martin, Sarah, House |
| North Wells Street Historic District |
| Ropp-Grabill House |
| Sandwich City Hall |
| Second Presbyterian Church |
| Skinner, Richard M., House |
| Soldiers' Monument |
| Stephenson County Courthouse |
| St. Ignatius College |
| Thompkins, Jennie S., House |
| Turney-Hall House |
| Weinrich, Christian F. |
| Wood-Tellkamp House |
Data from United States Park Service and Wikidata
